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(B) is false. The leaflets of the tricuspid valve develop equally from the endocardial cushion tissues and the myocardium. Downward dysplacement of the tricuspid valve is due to failure of delamination of valve leaflets from underlying myocardium.

(C) is false. The right coronary artery is vulnerable to kinking or distortion during RV plication, annuloplasty procedures, or tricuspid valve replacement due to the thin nature of the atrial and ventricular tissue at the level of the AV groove.

(A) Biventricular repair (Knott-Craig Approach) involves a repair of the tricuspid valve, and partial closure of the atrial septum.

(B) Right ventricular exclusion (Starnes Approach) involves fenestrated patch closure of the tricuspid orifice, enlargement of the interatrial communication, right atrial reduction, and placement of a systemic to pulmonary artery shunt.

(C) The RV exclusion procedure is useful for patients with anatomic RVOT obstruction.

(D) Cardiac transplantation is most often utilized when there is significant LV dysfunction.

(A) Biventricular repair (Knott-Craig Approach) involves a repair of the tricuspid valve, and partial closure of the atrial septum.

(B) Right ventricular exclusion (Starnes Approach) involves fenestrated patch closure of the tricuspid orifice, enlargement of the interatrial communication, right atrial reduction, and placement of a systemic to pulmonary artery shunt.

(C) The RV exclusion procedure is useful for patients with anatomic RVOT obstruction.

(D) Cardiac transplantation is most often utilized when there is significant LV dysfunction.